Digital guide

You are here:

Kollmorgen B-804-BA-91-TE

Product Introduction:​ This belongs to the Kollmorgen Goldline EB/B-Series of AC brushless servo motors designed for high-performance motion control. The B-804 denotes a size 80 frame with specific stack length, operating on 230 VAC line power with low inertia characteristics suitable for rapid acceleration cycles.

Detailed content

Technical Specifications:
  • Rated Voltage:​ 230 VAC (line-to-line)
  • Rated Speed:​ Approximately 1500 to 2000 RPM depending on winding
  • Rated Torque:​ Approximately 48.8 to 66.2 Nm (varies by specific winding sub-code)
  • Rated Power:​ Approximately 14.5 to 18.6 HP
  • Maximum Bus Voltage:​ 320 VDC
  • Thermal Time Constant:​ Approximately 0.70 minutes
  • Winding Resistance:​ Approximately 0.129 to 0.230 ohms (line-to-line at 25°C)
  • Inductance:​ Approximately 7.2 to 13 mH
    Functional Features:​ High torque density, rare-earth neodymium iron boron magnets, Class H insulation, built-in thermostat for thermal protection, and compatibility with resolver or encoder feedback.
    Application Scenarios:​ High-speed machining centers, packaging machinery, textile equipment, and robotics requiring rapid index and reversing.
    Material Composition:​ Neodymium permanent magnets, copper windings with Class H insulation, steel laminated stator core, aluminum alloy housing.
    Structural Features:​ Flange-mounted design (metric/NEMA), rear shaft extension option, IP65 rated sealing available, integral keyway shaft.
    Working Principle:​ Operates as a three-phase synchronous permanent magnet motor where the rotor position feedback (resolver/encoder) synchronizes the drive commutation to produce smooth, precise torque.
    Installation Requirements:​ Requires rigid mounting to prevent misalignment; must be grounded per local electrical codes; ensure shaft coupling is balanced to avoid radial loads exceeding specifications.
    Usage Precautions:​ Do not operate outside the performance curve limits; verify brake voltage if equipped; avoid exceeding ambient temperature ratings (typically 0-40°C or up to 155°C winding limit); store with shaft protected from corrosion.

You may also like